A single 174-color opaque range built around pigment density and dark, usable tones.

Why painters rate Pro Acryl
Pro Acryl, from Monument Hobbies, is a single opaque range of 174 colors that has earned its reputation on one quality above all: pigment density. The paints cover in fewer coats than many rivals, which is the whole selling point, and they ship in large dropper bottles with a mixing ball included. There is no sprawl of sub-ranges here, just one well-chosen set.
The palette is the darkest-leaning in this catalog. Its average color sits well below the midpoint in lightness, and it carries a striking 39 near-black and very dark colors alongside a strong red and brown block. That makes it excellent for undercoats, deep basecoats, and the muted, realistic schemes a lot of painters actually gravitate toward, rather than a rack of brights.
It is not purely opaque either: the range folds in a run of wash colors and a set of metallics, so a simple project can start and finish inside Pro Acryl. What it does not try to be is comprehensive the way a two-range or six-range brand is; its strength is a curated, high-quality core rather than an exhaustive color library.